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    Author(s): Mark A. FinneyDan JimenezJack D. Cohen; Isaac C. Grenfell; Cyle Wold
    Date: 2010
    Source: In: Viegas, D. X., ed. Proceedings of the VI International Conference on Forest Fire Research; 15-18 November 2010; Coimbra, Portugal. Coimbra, Portugal: University of Coimbra. 9 p.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (2.07 MB)

    Description

    Non-steady and turbulent flames are commonly observed to produce flame contacts with adjacent fuels during fire spread in a wide range of fuel bed depths. A stationary gas-fired burner (flame wall) was developed to begin study of flame edge variability along an analagous vertical fuel source. This flame wall is surrogate for a combustion interface at the edge of a deep (1.8 meters), vertically arranged fuel bed. Thermocouple and heat flux measurements along the flame wall indicate most of the variability in flame convection occurs at frequencies lower than 10-20 Hz. The variability and flame volume increased with increased height (turbulence) and fuel gas flow rate (flame mass).

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    Citation

    Finney, Mark A.; Jimenez, Dan; Cohen, Jack D.; Grenfell, Isaac C.; Wold, Cyle. 2010. Structure of diffusion flames from a vertical burner. In: Viegas, D. X., ed. Proceedings of the VI International Conference on Forest Fire Research; 15-18 November 2010; Coimbra, Portugal. Coimbra, Portugal: University of Coimbra. 9 p.

    Keywords

    flames, turbulence, vertical burner, wall fire

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